ZIP Code 42743 — Greensburg, KY
42743 is a standard (street delivery) ZIP code serving Greensburg, Kentucky, in Green County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 42743 at a glance
| ZIP code | 42743 |
|---|---|
| Primary city | Greensburg |
| State | Kentucky (KY) |
| County | Green FIPS 21087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 9,342 |
| Coordinates | 37.229580, -85.531750 |
How ZIP+4 works in 42743
The four digits after the hyphen encode a delivery segment inside 42743. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 42743 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 42743.
| ZIP | City | Distance |
|---|---|---|
| 42782 | Summersville, KY | 9.8 mi |
| 42722 | Canmer, KY | 10.7 mi |
| 42214 | Center, KY | 10.8 mi |
| 42742 | Gradyville, KY | 10.9 mi |
| 42746 | Hardyville, KY | 11.1 mi |
| 42718 | Campbellsville, KY | 14 mi |
| 42764 | Mount Sherman, KY | 14.7 mi |
| 42728 | Columbia, KY | 15.7 mi |
| 42757 | Magnolia, KY | 15.9 mi |
| 42154 | Knob Lick, KY | 16.4 mi |
| 42129 | Edmonton, KY | 16.8 mi |
| 42716 | Buffalo, KY | 17.6 mi |
Questions about 42743
What is the ZIP+4 code for 42743?
42743 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 42743, you need to look up a specific street address to get them.
What city is 42743?
42743 is assigned to Greensburg, Kentucky, in Green County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.